linux-kernel - Re: [PATCH 0/3] MIPS: Loongson64: Initial LS7A PCH support

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Date:   Fri, 29 May 2020 12:36:41 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     Huacai Chen <chenhc@...ote.com>
CC:     Marc Zyngier <maz@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:MIPS" <linux-mips@...r.kernel.org>,
        devicetree@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] MIPS: Loongson64: Initial LS7A PCH support



于 2020年5月29日 GMT+08:00 下午12:13:36, Huacai Chen <chenhc@...ote.com> 写到:
>Hi, Jiaxun,
>
>On Fri, May 29, 2020 at 11:45 AM Jiaxun Yang <jiaxun.yang@...goat.com> wrote:
>>
>> With this series, LS7A and Loongson-3A4000 is finally supported
>> note that this series should depend on irqchip support[1], which
>> is likely to get merged soon.
>>
>> Thanks.
>>
>> [1]: https://lkml.org/lkml/2020/5/16/72
>>
>> Jiaxun Yang (3):
>>   dt-bindings: mips: Document two Loongson generic boards
>>   MIPS: Loongson64: DeviceTree for LS7A PCH
>>   MIPS: Loongson64:Load LS7A dtbs
>>
>>  .../bindings/mips/loongson/devices.yaml       |   8 +
>>  arch/mips/boot/dts/loongson/Makefile          |   5 +-
>>  .../dts/loongson/loongson3-r4-package.dtsi    |  74 +++++++
>>  .../dts/loongson/loongson3_4core_ls7a.dts     |  25 +++
>>  .../boot/dts/loongson/loongson3_r4_ls7a.dts   |  10 +
>>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi     | 185 ++++++++++++++++++
>>  .../asm/mach-loongson64/builtin_dtbs.h        |   2 +
>>  arch/mips/loongson64/env.c                    |  56 +++---
>>  8 files changed, 342 insertions(+), 23 deletions(-)
>>  create mode 100644 arch/mips/boot/dts/loongson/loongson3-r4-package.dtsi
>>  create mode 100644 arch/mips/boot/dts/loongson/loongson3_4core_ls7a.dts
>>  create mode 100644 arch/mips/boot/dts/loongson/loongson3_r4_ls7a.dts
>>  create mode 100644 arch/mips/boot/dts/loongson/ls7a-pch.dtsi
>I think the naming can be like this: Old processor (Loongson 3A R1~R3)
>use loongson64c_ prefix instead of loongson3, new processor (Loongson
>3A R4) use loongson64g_ prefix instead of loongson3_r4, and
>Loongson-2K use loongson64r_ prefix, this makes them consistent with
>their PRID definitions.


DeviceTree bindings have stable ABI. Although they're currently 
only used internally in Kernel. I don't think it's a good idea
to rename existing bindings.

Also, Loongson64C/64G/64R never came to a part of Loongson's
official naming. I doubt if end users will recognize these names.

I'd prefer keep naming as is. It's really not a big deal.

Thanks.


>
>>
>> --
>> 2.27.0.rc0
>>

-- 
Jiaxun Yang